 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2026/ii/paper-3/34e/b/i/solution

Codex  0 Created 2026-09-24 Updated 2026-09-25

The listed points are precisely integer combinations of

a_{1}, a_{2}, a_{3}

(the face-centred cubic lattice), as follows by sorting the parity classes of doubled Cartesian coordinates.

 New to topics? Read the docs here!